首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   6799篇
  免费   62篇
各国政治   190篇
工人农民   66篇
世界政治   927篇
外交国际关系   504篇
法律   4179篇
中国共产党   99篇
中国政治   299篇
政治理论   477篇
综合类   120篇
  2021年   27篇
  2018年   23篇
  2016年   19篇
  2015年   23篇
  2014年   122篇
  2013年   44篇
  2012年   473篇
  2011年   475篇
  2010年   144篇
  2009年   135篇
  2008年   419篇
  2007年   484篇
  2006年   481篇
  2005年   477篇
  2004年   410篇
  2003年   406篇
  2002年   395篇
  2001年   317篇
  2000年   336篇
  1999年   173篇
  1998年   76篇
  1997年   58篇
  1996年   59篇
  1995年   52篇
  1994年   77篇
  1993年   55篇
  1992年   61篇
  1991年   63篇
  1990年   30篇
  1989年   29篇
  1988年   122篇
  1987年   35篇
  1986年   34篇
  1985年   36篇
  1984年   48篇
  1983年   49篇
  1982年   38篇
  1981年   46篇
  1980年   51篇
  1979年   51篇
  1978年   25篇
  1977年   43篇
  1976年   40篇
  1973年   18篇
  1964年   27篇
  1963年   30篇
  1962年   40篇
  1961年   18篇
  1960年   24篇
  1959年   29篇
排序方式: 共有6861条查询结果,搜索用时 15 毫秒
51.
52.
53.
54.
55.
56.
Employment figures from the Mexican national census are the basis for this analysis of employment changes in Mexico between 1895-1980. The work identifies longterm trends in the volume and composition of employment and distinguishes 3 main periods in the evolution of employment. The first period, from 1895-1930, marked the end of a stage of development lasting until about 1907 in which sufficient internal stability was achieved to support Mexico's entrance into the world market. Export of agricultural products and metals was the principal focus of economic growth. Construction of roads and railroads was a central element of progress. But economic and social problems manifested in regional disparities, concentration of wealth, conflicts between economic sectors, low pay for agricultural workers, and fierce social and political control characterized the period and culminated in the Mexican Revolution. After the first decade of the 20th century the ability of the economy to absorb new workers began to decline, and the falling of crude activity rates was not reversed until the 1940s. During the 1920s, total employment increased less than 6%, reflecting a net increase of 403,000 male workers and a decrease of 110,000 female workers. The second major period of employment from 1930-1970 saw the change from an economy based on export of primary products to one based on manufacturing for the internal market. There were 2 subperiods, a stage of transition from 1930-50, the economy registered marked fluctuations, but by the 1940s the consolidation of state power and important reforms permitting expansion of the internal market were factors in an accelerated growth of employment relative to the preceding intercensal period. Despite considerable increases in agricultural employment, the relative share of the agricultural sector in total employment was beginning a decline. Employment registered the highest growth rates of the century in the 1940s and exceeded population growth. The increased employment was explained by accelerated growth and accumulation in manufacturing along with increases in commerce, services, construction, and agriculture. From 1950-70, industrial development was consolidated, and there was a generalized expansion in employment in manufacturing as well as in the secondary and tertiary sectors. The economy was less able to absorb new labor, primarily because the agricultural sector had reached the limits of expansion in both the commercial and peasant sector by 1965, at just the time that population growth was most rapid. During the 1970s, manufacturing employment grew less rapidly because of modernization, almost exclusive orientation to the internal market which limited expansion, and scarcity of funds for importing capital goods. A new model of growth will be needed if Mexico is to escape its present stagnation, and a significant share of economic activity will need to be oriented to export. Until this process is consolidated, the national economy is unlikely to show signs of sustained recuperation.  相似文献   
57.
58.
59.
In April 1986, one-month-old Lance Tyler Steinhaus sustained serious injuries, attributed to abuse by his father, that left him comatose. His mother and his physicians agreed that he should not be treated aggressively. The Redwood County (Minnesota) Welfare Department obtained a temporary order restraining withdrawal of Lance's antibiotic therapy. Lance's mother and Dr. David Steinhorn, a pediatrician, appealed to the County Court to dissolve the temporary injunction. Judge George I. Harrelson in this decision denied their request on the grounds that both state and federal law establish that infants with life-threatening conditions have a right to medically-indicated treatment and that Lance Steinhaus had such a right because he was in a "vegetative state" rather than technically "comatose." [Editor's note: After conducting another hearing on Lance's neurological status, the court ruled on 18 October that Lance was irreversibly comatose and ordered only "comfort care."]  相似文献   
60.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号